Transmission Performance Analysis of WDM Radio over Fiber Technology for Next Generation Long-Haul Optical Networks

Figure 6

Optical spectrum at the output of the fiber when dispersion of fiber is set at (a) 1 PS/nm/km and (b) 16.75 PS/nm/km using QAM modulation technique and (c) 1 PS/nm/km and (d) 16.75 PS/nm/km using DPSK modulation technique.

(a)

(b)

(c)

(d)